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RSS-119 issue 12

publicité
RSS-119
Issue 12
May 2015
Spectrum Management and Telecommunications
Radio Standards Specification
Land Mobile and Fixed Equipment
Operating in the Frequency Range
27.41-960 MHz
Aussi disponible en français – CNR-119
Preface
Radio Standards Specification RSS-119, Issue 12, Land Mobile and Fixed Equipment Operating in the
Frequency Range 27.41-960 MHz, replaces RSS-119, Issue 11, Land Mobile and Fixed Radio
Transmitters and Receivers Operating in the Frequency Range 27.41-960 MHz, dated June 2011.
This document will be in force as of its publication on the Industry Canada website.
Listed below are the changes:
(1)
Requirements for equipment with a 6.25 kHz channel bandwidth operating in the frequency bands
806-821/851-866 MHz and 821-824/866-869 MHz have been added.
(2)
The provision for equipment with channel aggregation has been clarified to include mobile
equipment where applicable.
(3)
An alternative provision for frequency stability with which fixed and base equipment must comply
has been added.
(4)
The frequency stability for mobile equipment operating in the frequency bands 406.1-430 MHz,
450-470 MHz, 806-821/851-866 MHz and 821-824/866-869 MHz with an occupied bandwidth
greater than 20 MHz has been modified.
(5)
The frequency bands 764-768 MHz and 794-798 MHz assigned for public safety services have
been removed.
(6)
Limits for the transmitter output power of equipment have been added and clarified.
(7)
The date by which equipment operating in the frequency bands 768-776 MHz and 798-806 MHz
must comply with a minimum data rate of 4.8 kbps or one voice channel per 6.25 kHz has been
removed.
(8)
The requirement for equipment operating in the frequency bands 768-776 MHz and 798-806 MHz
to have a minimum data rate of 128 kbps per 50 kHz has been removed.
(9)
The adjacent channel power (ACP) limits for equipment operating in the frequency bands
768-776 MHz and 798-806 MHz have been modified.
(10) The requirement for including data port specifications in the user manual has been removed.
i
(11) The requirement for receiver spurious emissions has been removed because it is specified in RSSGen, General Requirements for Compliance of Radio Apparatus.
Issued under the authority of
the Minister of Industry
____________________________________
Daniel Duguay
Director General
Engineering, Planning and Standards Branch
ii
Contents
1.
Scope................................................................................................................................................1
1.1
Exclusion ..............................................................................................................................1
1.2
Land Mobile Equipment Operating in the Frequency Range 138-470 MHz ........................1
2.
General Information ......................................................................................................................1
2.1
Licensing Requirements .......................................................................................................1
2.2
Related Documents ...............................................................................................................1
3.
General Requirements ...................................................................................................................3
3.1
RSS-Gen Compliance ...........................................................................................................3
3.2
Transmitters With External Frequency Selection Controls ..................................................3
4.
Measurement Methods ..................................................................................................................3
4.1
Transmitter Output Power ....................................................................................................4
4.2
Transmitter Unwanted Emissions .........................................................................................4
4.3
Adjacent Channel Power (ACP) Measurement for Equipment in the Bands 768-776 MHz
and 798-806 MHz .................................................................................................................5
5.
Transmitter and Receiver Specifications .....................................................................................5
5.1
Interface Impedance ..............................................................................................................5
5.2
Types of Modulation.............................................................................................................6
5.3
Transmitter Frequency Stability ...........................................................................................6
5.4
Transmitter Output Power ....................................................................................................8
5.5
Channel Bandwidth, Authorized Bandwidth, Occupied Bandwidth and Spectrum Masks..9
5.6
Fixed Equipment With an Occupied Bandwidth Larger Than the Authorized Bandwidth
Permitted in This Standard .................................................................................................13
5.7
Equivalent Channels ...........................................................................................................13
5.8
Transmitter Unwanted Emissions .......................................................................................13
5.9
Transient Frequency Behaviour ..........................................................................................19
5.10 Transmitters With an Output Power not Exceeding 120 mW ............................................20
5.11 Interoperability Technical Standards for Equipment in the Bands 768-776 MHz and
798-806 MHz ......................................................................................................................21
iii
Land Mobile and Fixed Equipment
Operating in the Frequency Range 27.41-960 MHz
1.
RSS-119
Scope
This Radio Standards Specification (RSS) sets out requirements for land mobile and fixed equipment
operating in frequency bands within the range 27.41-960 MHz, as specified in Table 1 of this standard.
1.1
Exclusion
For the bands 27.41-28 MHz and 29.7-50 MHz, RSS-125, Land Mobile and Fixed Radio Transmitters
and Receivers, 1.705 to 50.0 MHz, Primarily Amplitude Modulated, shall be used for equipment
certification if the equipment’s signal is amplitude modulated.
1.2
Land Mobile Equipment Operating in the Frequency Range 138-470 MHz
Within the frequency bands 138-174 MHz, 406.1-430 MHz and 450-470 MHz, equipment used for the
land mobile service operating with a channel bandwidth of more than 12.5 kHz shall be certified only if
it is also able to meet the equivalent of one voice channel in a 12.5 kHz bandwidth (e.g., two voice
channels per 25 kHz).
2.
General Information
Equipment covered by this standard is classified as Category I equipment. Either a technical acceptance
certificate (TAC) issued by the Certification and Engineering Bureau of Industry Canada or a certificate
issued by a certification body (CB) is required.
2.1
Licensing Requirements
The equipment covered by this standard is subject to licensing, pursuant to subsection 4(1) of the
Radiocommunication Act.
2.2
Related Documents
All Spectrum Management and Telecommunications publications are available on Industry Canada’s
website at www.ic.gc.ca/spectrum under Official Publications.
The TIA standards can be obtained from the Telecommunications Industry Association’s website at
http://www.tiaonline.org.
The following documents should be consulted:
TIA Standard 603
Land Mobile FM or PM Communications Equipment Measurement
and Performance Standards
TIA Standard 102.BAAA
Project 25 – FDMA Common Air Interface – New Technology
Standards Project – Digital Radio Technical Standards
1
Land Mobile and Fixed Equipment
Operating in the Frequency Range 27.41-960 MHz
RSS-119
TIA Standard 102.BABA
Project 25 – Vocoder Description
TIA Standard 102.BAEA
Project 25 – Data Overview – New Technology Standards
Project – Digital Radio Technical Standards
TIA Standard 102.BAEB
Project 25 – Packet Data Specification – New Technology Standards
Project – Digital Radio Technical Standards
TIA Standard 102.BAEE
Project 25 – Radio Management Protocols – New Technology
Standards Project – Digital Radio Technical Standards
SRSP-500
Technical Requirements for Land Mobile and Fixed Radio Services
Operating in the Bands 138-144 MHz and 148-174 MHz
SRSP-501
Technical Requirements for Land Mobile and Fixed Radio Services
Operating in the Bands 406.1-430 MHz and 450-470 MHz
SRSP-502
Technical Requirements for Land Mobile and Fixed Radio Services
Operating in the Bands 806-821/851-866 MHz and
821-824/866-869 MHz
SRSP-504
Technical Requirements for Radio Paging Systems Operating in the
Band 929-932 MHz
SRSP-505
Technical Requirements for Multipoint Communications Systems
Operating in the Bands 928-929/952-953 MHz and
932-932.5/941-941.5 MHz
SRSP-506
Technical Requirements for Land Mobile and Fixed Radio
Services Operating in the Bands 896-901 MHz and 935-940 MHz
SRSP-507
Technical Requirements for Line-of-Sight Radio Systems Operating
in the Fixed Service in the Bands 932.5-935 MHz and 941.5-944 MHz
SRSP-511
Technical Requirements for Land Mobile Radio Services Operating
in the Bands 768-776 MHz and 798-806 MHz
SRSP-512
Technical Requirements for Land Mobile and Fixed Radio Services
Operating in the Band 220-222 MHz
______________________________
SRSP – Standard Radio System Plan
TIA – Telecommunications Industry Association
2
Land Mobile and Fixed Equipment
Operating in the Frequency Range 27.41-960 MHz
3.
General Requirements
3.1
RSS-Gen Compliance
RSS-119
RSS-119 shall be used in conjunction with RSS-Gen, General Requirements for Compliance of Radio
Apparatus, for general specifications and information relevant to the equipment covered by this
standard.
3.2
Transmitters With External Frequency Selection Controls
In order to prevent radio interference caused by end-user transmissions on unauthorized frequencies,
transmitters with external frequency selection controls and/or frequency programming capability shall
conform to the following:
(a) Transmitters with external frequency selection controls shall operate only on authorized channels
which have been preset by the manufacturer, equipment supplier, service technician or maintenance
personnel.
(b) Transmitters with frequency programming capability must have at least one of the following
design characteristics, which prevent the user from altering the preset frequencies:
(1) Transmitters with external controls available to the user can only be internally modified to place
the equipment in the programmable mode. Furthermore, while in the programmable mode, the
equipment is not capable of transmitting. The procedure for making the modification and altering
the frequency program is not available to the user of the equipment.
(2) Transmitters are programmed for frequencies through controls that are inaccessible to the user.
(3) Transmitters are programmed for frequencies through the use of external devices or specifically
programmed modules that are available only to the service technician or maintenance personnel.
(4) Transmitters are programmed through cloning (i.e., copying a program directly from another
transmitter) using devices and procedures that are available only to the service technician or
maintenance personnel.
4.
Measurement Methods
The transmitter shall be operated at the manufacturer’s rated power and tested in accordance with the
measurement method described in RSS-Gen with signals modulated as follows:
(a) If the audio input signal is voice and the transmitter is FM, the transmitter shall be modulated with a
2.5 kHz tone at a level 16 dB higher than that required to produce 50% of the maximum frequency
deviation.
3
Land Mobile and Fixed Equipment
Operating in the Frequency Range 27.41-960 MHz
RSS-119
(b) For all other transmitters, a signal representative (i.e., typical) of those encountered in a real system
operation shall be used. If the transmission is not continuous, this must be indicated in the test
report.
4.1
Transmitter Output Power
Measure and record the transmitter output power using a measurement (resolution) bandwidth at least
two to three times the width of the occupied bandwidth for transmitters equipped with masks D and E to
capture the true peak emission of the equipment under test. For transmitters equipped with other masks,
a measurement bandwidth wider than the occupied bandwidth of the transmitter shall be used.
4.2
Transmitter Unwanted Emissions
When the transmitter unwanted emissions are being measured, a sufficient number of sweeps must be
measured to ensure that the emission profile is developed. The video bandwidth shall be at least
three times the width of the instrument resolution bandwidth.
For transmitters that do not produce a full power unmodulated carrier, reference to the unmodulated
carrier power refers to the total output power contained in the occupied bandwidth when the transmitter
is modulated with signals representative of those encountered in a real system operation.
4.2.1
Emission Masks B, C, G, I and J
Unwanted emission measurements can be in peak or averaging mode, provided that the same parameter,
peak power or average power, used for the transmitter’s output power measurement is also used for the
unwanted emission measurements.
Except where otherwise stated, on any frequency removed from the carrier frequency by more than
250% of the authorized bandwidth, a resolution bandwidth of at least 100 kHz must be used for
frequencies to be measured at or below 1 GHz, and a resolution bandwidth of at least 1 MHz must be
used for frequencies to be measured above 1 GHz. If a narrower resolution bandwidth is used, power
integration shall be applied.
4.2.2
Emission Masks D, E, F and Y
In order to show compliance with the emission mask up to and including 50 kHz removed from the edge
of the authorized bandwidth, adjust the resolution bandwidth to 100 Hz with the measuring instrument in
a peak mode. For emissions beyond 50 kHz from the edge of the authorized bandwidth, the resolution
bandwidth shall be 100 kHz for frequencies at or below 1 GHz, and 1 MHz for frequencies above
1 GHz. However, for emission mask F, at a displacement frequency of less than 3.75 kHz, the resolution
bandwidth shall be 30 Hz.
4
Land Mobile and Fixed Equipment
Operating in the Frequency Range 27.41-960 MHz
4.3
RSS-119
Adjacent Channel Power (ACP) Measurement for Equipment in the Bands 768-776 MHz
and 798-806 MHz
The ACP measurements shall be made with a spectrum analyzer capable of making direct ACP
measurements. For all measurements, modulate the transmitter signal as it would be modulated in
normal operating conditions. For time division multiple access (TDMA) systems, the measurements are
to be taken under TDMA operation only during time slots when the transmitter is active. All
measurements are taken at the transmitter output port.
(1) Reference power level
Set the transmitter to its maximum output power. Set the spectrum analyzer’s measurement bandwidth to
the channel size. For example, for a 50 kHz transmitter, set the measurement bandwidth to 50 kHz. Set
the frequency offset of the measurement bandwidth to zero and adjust the centre frequency of the
instrument to the assigned centre frequency to measure the average power level of the transmitter.
Record this power level in dBm as the reference power level.
(2) Non-swept power measurement
Set the spectrum analyzer’s measurement bandwidth and the frequency offset from the assigned centre to
the values shown in the tables in Section 5.8.9 according to the equipment’s channel size. With a
resolution bandwidth of less than 2% of the measurement bandwidth, measure the power level in dBm.
These measurements shall be made at the transmitter’s maximum power. The ACP measured in this step
shall be lower than the reference power level as measured in (1) above by an amount greater than or
equal to the absolute value of the maximum relative ACP given in the tables in Section 5.8.9.
(3) Swept power measurement
Set the spectrum analyzer to 30 kHz resolution bandwidth, 1 MHz video bandwidth and average
detection. Set the reference power level of the spectrum analyzer to the average value of the transmitter
power, as measured in (1) above. Sweep above and below the carrier frequency to the limits defined in
the tables in Section 5.8.9 according to the equipment’s channel bandwidth. The ACP measured in this
step shall be lower than the reference power level by an amount greater than or equal to the absolute
value of the maximum relative ACP given in the tables in Section 5.8.9.
5.
Transmitter and Receiver Specifications
5.1
Interface Impedance
The preferred impedance is a resistive load of 600 ohms for audio frequencies, and 50 ohms for radio
frequencies.
5
Land Mobile and Fixed Equipment
Operating in the Frequency Range 27.41-960 MHz
5.2
RSS-119
Types of Modulation
Equipment that operates in the bands 768-776 MHz and 798-806 MHz shall use digital modulation.
Mobile and portable transmitters that operate in these bands may have analogue modulation capability
only as a secondary mode in addition to their primary digital mode. However, mobile and portable
transmitters that operate only on the low-power channels as defined in SRSP-511 may employ any type
of modulation.
5.3
Transmitter Frequency Stability
The carrier frequency shall not depart from the reference frequency in excess of the values given in
Table 1. For transmitters that have an output power of less than 120 mW, the frequency stability shall
comply with the limits listed in Table 1 or, alternatively, with the conditions in Section 5.10.
For fixed and base station equipment, in lieu of meeting the frequency stability limit specified in
Table 1, the test report can show that the frequency stability is met by demonstrating that the unwanted
emission limits, related to the equipment’s nominal carrier frequency measured under normal operation,
are met when the equipment is tested at the temperature and supply voltage variations specified for the
frequency stability measurement in RSS-Gen.
6
Land Mobile and Fixed Equipment
Operating in the Frequency Range 27.41-960 MHz
RSS-119
Table 1 – Transmitter Frequency Stability
Frequency Band (MHz)
Channel
Bandwidth
(kHz)
Base/Fixed
Frequency Stability (ppm)
Mobile Station
Output Power
Output Power ≤ 2 W
>2W
27.41-28 and 29.7-50
20
20
20
50
72-76
20
5
20
50
30
5
5
5
15
2.5
5
5
7.5
1
2
5
12.5
1
5
5
5
0.1
1.5
1.5
25 (Note 2)
0.5
1
1
25
2.5
5
5
12.5
1.5
2.5
2.5
6.25
25
12.5
6.25
0.5
1
1
0.1
0.4 (Note 4)
0.4 (Note 4)
50
1
1.25 (Note 5)
1.25 (Note 5)
25 (Note 2)
0.1
0.1
0.1
25
1.5
2.5
2.5
12.5
1
1.5
1.5
6.25
0.1
0.4
0.4
12.5
0.1
1.5
1.5
929-930/931-932
25
1.5
N/A
N/A
928-929/952-953 and
932-932.5/941-941.5
25
1.5
N/A
12.5
1
N/A
3
(for remote station)
25
2.5
N/A
N/A
12.5
2.5
N/A
N/A
138-174
217-218 and 219-220
220-222 (Note 1)
406.1-430 and 450-470
(Note 6)
768-776 and 798-806
(Note 3)
806-821/851-866 and
821-824/866-869
(Note 6)
896-901/935-940 (Note 6)
932.5-935/941.5-944
Notes:
1.
2.
N/A
Mobile units may use synchronizing signals from associated base stations to achieve the
specified carrier stability.
This provision is for digital equipment with a channel bandwidth of 25 kHz and an occupied
bandwidth greater than 20 kHz. The mobile station’s frequency stability values given in
Table 1 are for mobile, portable and control transmitters using automatic frequency control
(AFC) to lock onto the base station signal. When the mobile, portable and control transmitters
7
Land Mobile and Fixed Equipment
Operating in the Frequency Range 27.41-960 MHz
RSS-119
are operating without using AFC to lock onto the base station signal, the frequency stability
limit shall be better than 1 kHz and the equipment’s unwanted emissions measured with
maximum frequency shift shall still comply with emission mask Y (Section 5.8.10) at nominal
carrier frequency.
3.
Mobile, portable and control transmitters operating in the bands 768-776 MHz and
798-806 MHz must normally use AFC to lock onto the base station signal. The mobile station’s
frequency stability values given in Table 1 are for mobile stations operating under this
condition.
4.
When the mobile, portable and control transmitters are operating with channel bandwidths
equal to 6.25 kHz, 12.5 kHz or 25 kHz in the band 768-776 MHz and the AFC is not locked
onto the base station signal, the frequency stability must be equal to or better than 1 ppm for
6.25 kHz, 1.5 ppm for 12.5 kHz (2-channel aggregate), and 2.5 ppm for 25 kHz (4-channel
aggregate).
5.
When the mobile, portable and control transmitters are operating with channel bandwidths
equal to 50 kHz in the band 768-776 MHz and the AFC is not locked onto the base station
signal, the frequency stability must be equal to or better than 5 ppm.
6.
Control stations may operate with the frequency stability specified for associated mobile
frequencies.
5.4
Transmitter Output Power
The output power shall be within ±1 dB of the manufacturer’s rated power listed in the equipment
specifications.
The transmitter output power limits set forth in Table 2 will come into force upon the publication of
Issue 12 of this standard and will apply to newly certified equipment.
8
Land Mobile and Fixed Equipment
Operating in the Frequency Range 27.41-960 MHz
RSS-119
Table 2 – Transmitter Output Power
Frequency Bands
(MHz)
27.41-28 and 29.7-50
72-76
138-174
217-218 and 219-220
220-222
406.1-430 and 450-470
768-776 and 798-806
806-821/851-866 and
821-824/866-869
896-901/935-940
929-930/931-932
928-929/952-953 and
932-932.5/941-941.5
932.5-935/941.5-944
Transmitter Output Power (W)
Base/Fixed
Mobile
Equipment
Equipment
300
30
No limit
1
110
60
110
30*
See SRSP-512
50
for ERP limit
110
60
See SRSP-511
30
for ERP limit
3 W ERP for
portable equipment
110
30
110
110
110
60
30
30
110
30
*Equipment is generally authorized for effective radiated power (ERP) of less than 5 W.
5.5
Channel Bandwidth, Authorized Bandwidth, Occupied Bandwidth and Spectrum Masks
For the purpose of this document, channel bandwidth is the channel width in which the equipment is
designed to operate.
The maximum permissible occupied bandwidth shall not exceed the authorized bandwidth specified in
Table 3 for the equipment’s frequency band. The authorized bandwidth is defined as the maximum
width of the band of frequencies used to derive spectrum masks and is not necessarily equivalent to the
bandwidth found on radio and spectrum licences.
The channel bandwidths, authorized bandwidths and spectrum masks are given in Table3 for equipment
having an output power greater than 120 mW. For equipment with an output power that does not exceed
120 mW, Section 5.10 applies.
9
Land Mobile and Fixed Equipment
Operating in the Frequency Range 27.41-960 MHz
RSS-119
Table 3 – Channel Bandwidths, Authorized Bandwidths and Spectrum Masks
Spectrum
Masks for
Equipment
Without Audio
Filter
Spectrum
Masks for
Equipment
With
Audio Filter
Authorized
Bandwidth
(kHz)
Frequency Band (MHz)
Related SRSP for
Channelling Plan and
ERP
27.41-28 and 29.7-50
N/A
20
20
B
C
72-76
N/A
20
20
B
C
30
20
B
C
15
11.25
D
D
7.5
6
E
E
12.5
11.25
D or I
D or J
5
4
F
F
20
B
C (G) (Note 1)
22
Y
Y
12.5
11.25
D
D
6.25
6
E
E
(Note 2)
See Section
5.8.9
See Section
5.8.9
20
B
22
Y
Y
12.5
11.25
D
D
6.25
6
E
E
12.5
13.6
I
J
(G) (Note 3)
25
20
B
G
25
20
B
G
12.5
11.25
D
D
25
20
B
G
12.5
11.25
D
D
138-144, 148-149.9 and
150.05-174
Channel
Bandwidth
(kHz)
SRSP-500
217-218 and 219-220
N/A
220-222
SRSP-512
25
406.1-430 and 450-470
SRSP-501
6.25
768-776 and 798-806
12.5
SRSP-511
25
50
806-821/851-866
and 821-824/866-869
25
SRSP-502
896-901/935-940
SRSP-506
929-930 and 931-932
SRSP-504 (for paging)
928-929/952-953
and 932-932.5/941-941.5
SRSP-505
932.5-935/941.5-944
SRSP-507
G
Notes:
1.
Paging transmitters in the bands 406.1-430 MHz and 450-470 MHz are to use mask G.
2.
Provided that the ACP requirements in Section 5.8.9.1 are met, any authorized bandwidth that
does not exceed the channel bandwidth can be used.
10
Land Mobile and Fixed Equipment
Operating in the Frequency Range 27.41-960 MHz
RSS-119
3.
Mask G applies if two 12.5 kHz channels are aggregated. Alternatively, a mask may be used if
it does not produce more adjacent channel interference than narrowband (12.5 kHz) channel
equipment.
5.5.1
For the band 72-76 MHz, the channel carriers for fixed and mobile stations are given in
tables 4(a) and 4(b) respectively. It is to be noted that 0.75 W licence-exempt radios (see
RSS-210, Licence-exempt Radio Apparatus (All Frequency Banks): Category I Equipment) are
permitted interstitially, 10 kHz offset to tables 4(a) and 4(b) frequencies, in the bands 72.0172.99 MHz and 75.41-75.99 MHz.
Table 4(a) – 72-76 MHz Channel Carrier or Centre Frequencies for Fixed Stations
Dashes (--) indicate that the channel is not available.
MHz
MHz
MHz
MHz
MHz
MHz
MHz
MHz
72.02
72.22
72.42
72.62
72.82
75.42
75.62
75.82
72.04
72.24
--
72.64
72.84
--
75.64
75.84
72.06
72.26
72.46
72.66
72.86
75.46
75.66
75.86
72.08
72.28
--
72.68
72.88
--
75.68
75.88
72.10
72.30
72.50
72.70
72.90
75.50
75.70
75.90
72.12
72.32
--
72.72
72.92
--
75.72
75.92
72.14
72.34
72.54
72.74
72.94
75.54
75.74
75.94
72.16
72.36
--
72.76
72.96
--
75.76
75.96
72.18
72.38
72.58
72.78
72.98
75.58
75.78
75.98
72.20
72.40
--
72.80
--
--
75.80
--
11
Land Mobile and Fixed Equipment
Operating in the Frequency Range 27.41-960 MHz
RSS-119
Table 4(b) – 72-76 MHz Channel Carrier or Centre Frequencies for Mobile Stations
Dashes (--) indicate that the channel is not available.
MHz
MHz
MHz
MHz
MHz
MHz
72.02
72.22
--
74.61
75.21
--
72.04
72.24
72.44
74.63
75.23
75.44
72.06
72.26
--
74.65
75.25
--
72.08
72.28
72.48
74.67
75.27
75.48
72.10
72.30
--
74.69
75.29
--
72.12
72.32
72.52
74.71
75.31
75.52
72.14
72.34
--
74.73
75.33
--
72.16
72.36
72.56
74.75
75.35
75.56
72.18
72.38
--
74.77
75.37
--
72.20
72.40
72.60
74.79
75.39
75.60
5.5.2
The bands 217-218 MHz and 219-220 MHz are each segmented into 80 channels, with
carrier frequencies evenly spaced at 12.5 kHz, the first and last carrier frequencies being
6.25 kHz from the band edges. Note: Equipment may be certified to operate in the entire
band 217-220 MHz, but the sub-band 218-219 MHz may not be available for licensing.
5.5.3
The bands 462-463 MHz and 467-468 MHz are to be used for licence-exempt Family Radio
Service (FRS) and General Mobile Radio Service (GMRS). RSS-210 is to be used for
equipment certification.
5.5.4
The bands 768-776 MHz and 798-806 MHz are designated for use by public safety services.
See SRSP-511 for channel assignments.
Transmitters using digital modulation shall be capable of having a minimum data rate of
4.8 kbps per 6.25 kHz bandwidth or one voice channel per 12.5 kHz bandwidth.
5.5.5
The bands 821-824/866-869 MHz are to be used only for public safety purposes. The
channelling plan is given in SRSP-502.
5.5.6
FM transmitters with voice input may use the spectrum mask for equipment with an audio
filter if they are equipped with suitable filters to be used for the audio signal only and not for
other purposes. Equipment employing other modulations shall comply with the spectrum
masks for equipment without an audio filter.
5.5.7
See the relevant SRSPs for equipment channelling plans.
12
Land Mobile and Fixed Equipment
Operating in the Frequency Range 27.41-960 MHz
5.6
RSS-119
Fixed Equipment With an Occupied Bandwidth Larger Than the Authorized Bandwidth
Permitted in This Standard
Fixed equipment requiring an occupied bandwidth larger than the authorized bandwidth shown in
Table 3 may be permitted if that the equipment complies with the three following conditions:
(1) The equipment is allowed to have aggregate channels as per the SRSP for its operating frequency
bands.
(2) The ERP shall not be increased with increased occupied bandwidth.
(3) The equipment shall employ an emission mask that does not result in more adjacent channel
interference than the standard narrowband channel equipment emission mask specified in Table 3.
5.7
Equivalent Channels
When a 25/30 kHz channel of a transmitter carries several voice channels to meet the required spectrum
efficiency of one voice channel in a 12.5 kHz bandwidth, the physical channel is still 25/30 kHz.
Therefore, the equipment shall comply with the requirements for equipment with a 25/30 kHz channel
bandwidth, such as the requirements related to the authorized bandwidth, spectrum mask and frequency
stability.
5.8
Transmitter Unwanted Emissions
The spectrum plots of the unwanted emissions shall comply with the masks specified in Table 3.
Descriptions of these permissible emission masks are given in the sections that follow.
The term displacement frequency, fd, used in these sections refers to the difference between the channel
frequency and the emission component frequency expressed in kilohertz, and p is the transmitter output
power in Watts.
5.8.1
Emission Mask B for Transmitters Equipped With an Audio Low-Pass Filter
The power of any emission shall be attenuated below the transmitter output power P (dBW) as specified
in Table 5.
Table 5 – Emission Mask B
Displacement
Frequency, fd (kHz)
Minimum Attenuation (dB)
Resolution Bandwidth (Hz)
10 < fd ≤ 20
25
300
20 < fd ≤ 50
35
300
43 + 10 log10(p)
Specified in Section 4.2.1
fd > 50
13
Land Mobile and Fixed Equipment
Operating in the Frequency Range 27.41-960 MHz
5.8.2
RSS-119
Emission Mask C for Transmitters not Equipped With an Audio Low-Pass Filter
The power of any emission shall be attenuated below the transmitter output power P (dBW) as specified
in Table 6.
Table 6 – Emission Mask C
Displacement
Frequency, fd (kHz)
Minimum Attenuation (dB)
5 < fd ≤ 10
10 < fd ≤ 50
fd > 50
5.8.3
Resolution Bandwidth (Hz)
83 log10(fd/5)
Whichever is the lesser:
50 or
29 log10(fd2/11)
300
43 + 10 log10(p)
Specified in Section 4.2.1
300
Emission Mask D for Transmitters Equipped With or Without an Audio Low-Pass Filter
The power of any emission shall be attenuated below the transmitter output power P (dBW) as specified
in Table 7.
Table 7 – Emission Mask D
Displacement
Frequency, fd (kHz)
5.625 < fd ≤ 12.5
fd > 12.5
5.8.4
Minimum Attenuation (dB)
7.27(fd–2.88)
Whichever is the lesser:
70 or
50 + 10 log10(p)
Resolution Bandwidth (Hz)
Specified in Section 4.2.2
Specified in Section 4.2.2
Emission Mask E for Transmitters Equipped With or Without an Audio Low-Pass Filter
The power of any emission shall be attenuated below the transmitter output power P (dBW) as specified
in Table 8.
Table 8 – Emission Mask E
Displacement
Frequency, fd (kHz)
3 < fd ≤ 4.6
fd > 4.6
Minimum Attenuation (dB)
Whichever is the lesser:
30 + 16.67(fd–3) or
55 + 10 log10(p)
Whichever is the lesser:
57 or
55 + 10 log10(p)
14
Resolution Bandwidth (Hz)
Specified in Section 4.2.2
Specified in Section 4.2.2
Land Mobile and Fixed Equipment
Operating in the Frequency Range 27.41-960 MHz
5.8.5
RSS-119
Emission Mask F for Transmitters Equipped With or Without an Audio Low-Pass Filter
The power of any emission shall be attenuated below the transmitter output power P (dBW) as specified
in Table 9.
Table 9 – Emission Mask F
Displacement
Frequency, fd (kHz)
Minimum Attenuation (dB)
2 < fd ≤ 3.75
3.75 < fd
5.8.6
Whichever is the lesser:
30 + 20(fd–2) or
55 + 10 log10(p)
Whichever is the lesser:
65 or
55 + 10 log10(p)
Resolution Bandwidth (Hz)
30
Specified in Section 4.2.2
Emission Mask G for Transmitters not Equipped With an Audio Low-Pass Filter
The power of any emission shall be attenuated below the transmitter output power P (dBW) as specified
in Table 10.
Table 10 – Emission Mask G
Displacement
Frequency, fd (kHz)
10 < fd ≤ 50
fd > 50
5.8.7
Minimum Attenuation (dB)
Resolution Bandwidth (Hz)
Whichever is the lesser:
70 or
116 log10(fd/6.11) or
50 + 10 log10(p)
300
43 + 10 log10(p)
Specified in Section 4.2.1
Emission Mask I for Transmitters Equipped With an Audio Low-Pass Filter
The power of any emission shall be attenuated below the transmitter output power P (dBW) as specified
in Table 11.
15
Land Mobile and Fixed Equipment
Operating in the Frequency Range 27.41-960 MHz
RSS-119
Table 11 – Emission Mask I
Displacement
Frequency, fd (kHz)
6.8 < fd ≤ 9
Minimum Attenuation (dB)
9 < fd ≤ 15
25
300
35
300
300 for emissions at
fd ≤ 250% of the authorized
bandwidth.
Specified in Section 4.2.1 for
emissions at fd > 250% of the
authorized bandwidth.
Whichever is the lesser:
70 or
43 + 10 log10(p)
fd > 15
5.8.8
Resolution Bandwidth (Hz)
Emission Mask J for Transmitters not Equipped With an Audio Low-Pass Filter
The power of any emission shall be attenuated below the transmitter output power P (dBW) as specified
in Table 12.
Table 12 – Emission Mask J
Displacement
Frequency, fd (kHz)
2.5 < fd ≤ 6.25
Minimum Attenuation (dB)
6.25 < fd ≤ 9.5
fd > 9.5
Resolution Bandwidth (Hz)
53 log10(fd/2.5)
300
103 log10(fd/3.9)
300
300 for emissions at
fd ≤ 250% of the authorized
bandwidth.
Specified in Section 4.2.1 for
emissions at fd > 250% of the
authorized bandwidth.
Whichever is the lesser:
70 or
157 log10(fd/5.3) or
50 + 10 log10(p)
5.8.9
Emission Mask for Equipment in the Bands 768-776 MHz and 798-806 MHz
5.8.9.1
Adjacent Channel Power (ACP)
The ACP of transmitters operating in the bands 768-776 MHz and 798-806 MHz shall comply with the
requirements for various transmitter channel sizes provided in tables 13 to 16. Mobile station
requirements apply to handheld, car-mounted and control station units. The tables specify a maximum
value for the ACP relative to the maximum output power as a function of the displacement fd from the
channel centre frequency. In the tables, “s” indicates that a swept measurement may be used.
16
Land Mobile and Fixed Equipment
Operating in the Frequency Range 27.41-960 MHz
RSS-119
Table 13 – ACP Requirements for 6.25 kHz Bandwidth Transmitters
Displacement Frequency, fd (kHz)
6.25
12.5
18.75
25
37.5
62.5
87.5
150
250
350
400 < fd ≤ 12 MHz
12 MHz < fd ≤ paired receive band
In the paired receive band
Maximum Relative ACP
(dBc)
Mobile
Base
Station
Station
–40
–40
–60
–60
–65
–65
–65
–65
–65
–65
–75
–80
–100
–85
Measurement
Bandwidth
(kHz)
6.25
25
100
30(s)
Table 14 – ACP Requirements for 12.5 kHz Bandwidth Transmitters
Displacement Frequency, fd (kHz)
9.375
15.625
21.875
37.5
62.5
87.5
150
250
350
400 < fd ≤ 12 MHz
12 MHz < fd ≤ paired receive band
In the paired receive band
Maximum Relative ACP
(dBc)
Mobile
Base
Station
Station
–40
–40
17
Measurement
Bandwidth
(kHz)
6.25
–60
–60
–60
–60
25
–65
–65
25
–65
–65
100
–75
–80
–100
–85
30(s)
Land Mobile and Fixed Equipment
Operating in the Frequency Range 27.41-960 MHz
RSS-119
Table 15 – ACP Requirements for 25 kHz Bandwidth Transmitters
Maximum Relative ACP
(dBc)
Mobile
Base
Station
Station
–40
–40
–60
–60
–60
–60
Displacement Frequency, fd (kHz)
15.625
21.875
37.5
62.5
87.5
150
250
350
400 ≤ fd ≤ 12 MHz
12 MHz ≤ fd ≤ paired receive band
In the paired receive band
–65
–65
–65
–65
–75
–80
–100
–85
Measurement
Bandwidth
(kHz)
6.25
6.25
25
25
25
100
30(s)
Table 16 – ACP Requirements for 50 kHz Bandwidth Transmitters
Maximum Relative ACP (dBc)
Displacement Frequency, fd
(kHz)
50
Mobile
Station
Measurement
Bandwidth
(kHz)
Base
Station
–40
–40
100
150
–50
200
250
300
350
–50
–55
50
400
450
–60
500
550
600 ≤ fd < 1000
–60
–65
1000 ≤ fd < 2000
–65
–70
–70
–75
–100
–85
2000 ≤ fd < 9000
9000 ≤ fd ≤ paired receive band
In the paired receive band
18
30(s)
Land Mobile and Fixed Equipment
Operating in the Frequency Range 27.41-960 MHz
5.8.9.2
RSS-119
Out-of-Band Emission Limit
On any frequency outside of the ranges specified in the ACP tables 13 to 16, the power of any emission
shall be attenuated below the mean output power P (dBW) by at least 43 + 10 log10(p), measured in a
100 kHz bandwidth for frequencies less than or equal to 1 GHz, and in a 1 MHz bandwidth for
frequencies greater than 1 GHz.
In addition, for operations in the bands 768-776 MHz and 798-806 MHz, all emissions (including
harmonics in the band 1559-1610 MHz), shall not exceed:
-70 dBW/MHz equivalent isotropically radiated power (e.i.r.p.) for wideband emissions, and
-80 dBW/kHz e.i.r.p. for discrete emissions of less than 700 Hz bandwidth.
5.8.10
Emission Mask Y for Equipment With a 25 kHz Channel Bandwidth and an Occupied
Bandwidth Greater Than 20 kHz
Equipment with a 25 kHz channel bandwidth and an occupied bandwidth greater than 20 kHz shall have
the power of any emission attenuated below the transmitter output power P (dBW) as specified in
Table 17.
Table 17 – Emission Mask Y
Displacement
Frequency, fd (kHz)
12.375 < fd ≤ 13.975
fd > 13.975
5.9
Minimum Attenuation (dB)
Whichever is the lesser:
30 + 16.67(fd–12.375) or
55 + 10 log10(p)
Whichever is the lesser:
57 or
55 + 10 log10(p)
Resolution Bandwidth (Hz)
Specified in Section 4.2.2
Specified in Section 4.2.2
Transient Frequency Behaviour
When a transmitter is turned on, the radio frequency may take some time to stabilize. During this initial
period, the frequency error or frequency difference (i.e., between the instantaneous and the steady state
frequencies) shall not exceed the limits specified in Table 18.
Any suitable method of measurement can be used provided that it is fully described in the test report. A
suitable and recommended method is given in TIA Standard 603.
19
Land Mobile and Fixed Equipment
Operating in the Frequency Range 27.41-960 MHz
RSS-119
Table 18 – Transient Frequency Behaviour
Channel
Bandwidth
(kHz)
25
12.5
6.25
Notes:
1.
Time
Intervals
(Notes 1, 2)
Transient
Duration
Limit (ms)
138-174
406.1-512
MHz
MHz
Maximum
Frequency
Difference
(kHz)
t1
±25
5
10
t2
±12.5
20
25
t3
±25
5
10
t1
±12.5
5
10
t2
±6.25
20
25
t3
±12.5
5
10
t1
±6.25
5
10
t2
±3.125
20
25
t3
±6.25
5
10
ton: the instant when a 1 kHz test signal is completely suppressed, including any capture time
due to phasing.
t1: the time period immediately following ton.
t2: the time period immediately following t1.
t3: the time period from the instant when the transmitter is turned off until toff.
toff: the instant when the 1 kHz test signal starts to rise.
2.
If the transmitter carrier output power rating is 6 W or less, the frequency difference during the
time periods t1 and t3 may exceed the maximum frequency difference for these time periods.
The corresponding plot of frequency versus time during t1 and t3 shall be recorded in the test
report.
5.10
Transmitters With an Output Power not Exceeding 120 mW
Transmitters that have an output power that does not exceed 120 mW are exempt from the emission
masks of Section 5.8, the transient frequency behaviour of Section 5.9, and the frequency stability limits
of Section 5.3 provided that they comply with the following:
The sum of the bandwidth occupied by the emitted signal plus the bandwidth required for frequency
stability shall be adjusted so that any emission appearing on a displacement frequency, fd, from the
assigned frequency as shown in Table 19 is attenuated below the unmodulated carrier power by at least
30 dB, when measured with a resolution bandwidth of 300 Hz. If the unmodulated carrier power is not
available, the modulated transmitter output power can be used instead. The transmitter output power is
measured or integrated over its occupied bandwidth.
20
Land Mobile and Fixed Equipment
Operating in the Frequency Range 27.41-960 MHz
RSS-119
Table 19 – Displacement Frequency for Required Attenuation for Transmitters Having an Output
Power of Less Than 120 mW
Equipment Channel
Bandwidth (kHz)
25
30
12.5
15
6.25
7.5
Displacement Frequency,
fd (kHz)
fd ≥ 40
fd ≥ 25
fd ≥ 12.5
The frequency stability test as given in RSS-Gen shall be carried out to demonstrate the compliance of
the attenuation above.
5.11
Interoperability Technical Standards for Equipment in the Bands 768-776 MHz and
798-806 MHz
Transmitters operating on those narrowband channels in the bands 768-776 MHz and 798-806 MHz
designated for interoperability (see SRSP-511) shall comply with the requirements in the following
sections and a statement of declaration of compliance shall be included in the test report.
5.11.1
Voice Operation Equipment
Transmitters designed for voice operation shall include a 12.5 kHz bandwidth mode of operation
conforming to the following standards, which are incorporated by reference:
(1) Project 25 – FDMA Common Air Interface – New Technology Standards Project – Digital Radio
Technical Standards, Telecommunications Industry Association, TIA-102.BAAA; and
(2) Project 25 – Vocoder Description, Telecommunications Industry Association, TIA-102.BABA.
5.11.2
Data Transmission Equipment
Transmitters designed for data transmission shall include a 12.5 kHz bandwidth mode of operation
conforming to the following standards, which are incorporated by reference:
(1) Project 25 – Data Overview – New Technology Standards Project – Digital Radio Technical
Standards, Telecommunications Industry Association, TIA-102.BAEA;
(2) Project 25 – Packet Data Specification – New Technology Standards Project – Digital Radio
Technical Standards, Telecommunications Industry Association, TIA-102.BAEB;
(3) Project 25 – Radio Management Protocols – New Technology Standards Project – Digital Radio
Technical Standards, Telecommunications Industry Association, TIA-102.BAEE; and
21
Land Mobile and Fixed Equipment
Operating in the Frequency Range 27.41-960 MHz
RSS-119
(4) Project 25 – FDMA Common Air Interface – New Technology Standards Project – Digital Radio
Technical Standards, Telecommunications Industry Association, TIA-102.BAAA.
22
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